Design of Straight-line Navigation System for Farm Machines Based on Mobile Internet Technology

Abstract

Abstract:In order to keep the farm machines straight in the agricultural production process, the straight-line navigation system for farm machines based on mobile internet technology and inertial navigation technology was developed. Straight-line navigation system consists of sensor subsystem and the Android mobile terminal. The sensor subsystem measures the deflection angle and uploads the angle to the Android mobile terminal via Wi-Fi. The Android mobile terminal that installed the straight-line navigation APP can accomplish real-time displaying the navigation data and setting the system parameters. The results indicate that the maximum offset error was less than 7.8 cm for straight trajectory tracking after the farm machine moved 50 m when the traveling speeds of the farm machine was not greater than 0.95 m/s. The straight-line navigation system can meet the requirements of agricultural production.